Feat: firestore profiles now has files field (#1541)

[kkerti]

Original issue: #1541

Profile Cloud file management

• Implements file upload support for Profile Cloud: module "files" field is now synced to Firestore when profiles are saved to the cloud.
• Refactored FileManager by extracting business logic into a dedicated FileManager.ts, separating concerns from the Svelte component.
• Moved file operations out of the component layer and into runtime.ts / operations.ts to avoid circular dependencies.
• Renamed action-string execution functions to execConfigImmediate and added SendLuaImmediateAndEvaluate to instructions.ts for clearer intent.

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[Greg-Orca]

#1541

[kkerti]

From QA session w/ @Greg-Orca

• On profile cloud card, "Files" should be renamed to indicate that the files belong to the Profile
• Overwrite on profile should overwrite files as well, follow how Editor works
• Upload a random profile -> enter the page folder in FileManager -> upload a profile with files -> click on Root -> ERROR
• Save file to folder in FM -> if you are in folder and disconnect module -> reconnect -> click root -> ERROR
• Profile load should remove files first from page
  • What if page folder has calibration?
  • What if page has... ?